SE8901213D0 - DEPLACEMENT PUMP AND PUMP UNIT INCLUDING TWO DEPLACEMENT PUMPS - Google Patents

DEPLACEMENT PUMP AND PUMP UNIT INCLUDING TWO DEPLACEMENT PUMPS

Info

Publication number
SE8901213D0
SE8901213D0 SE8901213A SE8901213A SE8901213D0 SE 8901213 D0 SE8901213 D0 SE 8901213D0 SE 8901213 A SE8901213 A SE 8901213A SE 8901213 A SE8901213 A SE 8901213A SE 8901213 D0 SE8901213 D0 SE 8901213D0
Authority
SE
Sweden
Prior art keywords
pump
pump housing
plunger
chamber
deplacement
Prior art date
Application number
SE8901213A
Other languages
Swedish (sv)
Other versions
SE8901213L (en
SE467839B (en
Inventor
Henrikkitsnik
Original Assignee
Henrikkitsnik
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henrikkitsnik filed Critical Henrikkitsnik
Priority to SE8901213A priority Critical patent/SE467839B/en
Publication of SE8901213D0 publication Critical patent/SE8901213D0/en
Publication of SE8901213L publication Critical patent/SE8901213L/en
Publication of SE467839B publication Critical patent/SE467839B/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • F04B53/162—Adaptations of cylinders
    • F04B53/164—Stoffing boxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
    • F04B11/005—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
    • F04B9/109—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers
    • F04B9/117—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers the pumping members not being mechanically connected to each other
    • F04B9/1176—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers the pumping members not being mechanically connected to each other the movement of each piston in one direction being obtained by a single-acting piston liquid motor
    • F04B9/1178—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers the pumping members not being mechanically connected to each other the movement of each piston in one direction being obtained by a single-acting piston liquid motor the movement in the other direction being obtained by a hydraulic connection between the liquid motor cylinders

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

A pump of displacement type, designed to be driven hydraulically, comprises at least one pump housing chamber (5, 5A), one pump housing cylinder and a plunger (10, 10A) mounted in the pump housing cylinder, which plunger during the pump stroke is driven into the pump housing chamber, and one hydraulic cylinder with a driving chamber (42A, 58'), which can be connected to a pressure source in order to develop in the driving chamber a certain hydraulic pressure (Ph), which is to drive the plunger. A rinsing water chamber (34, 34', 134) contains a certain amount of rinsing water, which during the pump stroke by means of the hydraulic pressure is maintained at a pressure (Pv), which is higher than the pump pressure (Pp) but lower than the hydraulic pressure (Ph > Pv > Pp). In the pump housing cylinder at least one first annular element (17, 17') is fastened in the pump housing and faces the cylinder surface (16) of the plunger. On the rear side of the first annular element there is an annular space (22, 22', 122), which surrounds the plunger (10). The rinsing water from the rinsing water chamber (34, 34') is caused, during the pump stroke, to be fed to said space (22, 22') behind said first annular element, to flow through said space and subsequently to flow past said first annular element (17, 17') into said pump housing chamber.
SE8901213A 1989-04-06 1989-04-06 HYDRAULIC DRIVE DEPLACEMENT PUMP SE467839B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8901213A SE467839B (en) 1989-04-06 1989-04-06 HYDRAULIC DRIVE DEPLACEMENT PUMP

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8901213A SE467839B (en) 1989-04-06 1989-04-06 HYDRAULIC DRIVE DEPLACEMENT PUMP
PCT/SE1990/000566 WO1992004543A1 (en) 1990-09-05 1990-09-05 A displacement pump as well as a pump assembly comprising two displacement pumps

Publications (3)

Publication Number Publication Date
SE8901213D0 true SE8901213D0 (en) 1989-04-06
SE8901213L SE8901213L (en) 1990-10-07
SE467839B SE467839B (en) 1992-09-21

Family

ID=1236526

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8901213A SE467839B (en) 1989-04-06 1989-04-06 HYDRAULIC DRIVE DEPLACEMENT PUMP

Country Status (4)

Country Link
EP (1) EP0592395B1 (en)
DE (1) DE69028123T2 (en)
SE (1) SE467839B (en)
WO (1) WO1992004543A1 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE8105988L (en) * 1981-10-09 1983-04-10 Hk Eng Ab DEPLACEMENT TYPE PUMP

Also Published As

Publication number Publication date
EP0592395A1 (en) 1994-04-20
SE8901213L (en) 1990-10-07
DE69028123T2 (en) 1997-01-23
DE69028123D1 (en) 1996-09-19
EP0592395B1 (en) 1996-08-14
SE467839B (en) 1992-09-21
WO1992004543A1 (en) 1992-03-19

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